Satellite Navigation Systems, ContinuedGPS SignalsFigure 8-29 depicts a simplified view of how a GPS signal is processed.The AN/WRN-6 Satellite Signals Navigation Set is the receiver that theNavy uses to obtain and display GPS fixes.Figure 8-29. Navstar global positioning system.AN/WRN 6(V)The AN/WRN 6(V), shown in figure 8-30, computes accurate positioncoordinate, elevation, speed, and time information from the signalstransmitted from GPS satellites.Accuracy: The AN/WRN 6(V) will provide positions accurate within100 meters in the unencrypted mode and positions accurate to within 16meters or less in the encrypted mode. At all times, if possible, theAN/WRN 6(V) should be operated in the encrypted mode.Operating Procedures: Specific operating instructions for theAN/WRN 6(V) are contained in NAVY SPAWAR publication EE170-AA-OMI-020/WRN6. All Quartermasters should become well versed inthe contents of this publication.8-45